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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM6546 датащи(PDF) 177 Page - Texas Instruments |
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AM6546 датащи(HTML) 177 Page - Texas Instruments |
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177 / 284 page  Table 7-37. eQEP Timing Conditionns PARAMETER MIN MAX UNIT INPUT CONDITIONS SRI Input slew rate 1 4 V/ns OUTPUT CONDITIONS CL Output load capacitance 2 7 pF Section 7.9.5.8.1 and Section 7.9.5.8.2 present Timing Requirements and Switching Characteristics for eQEP (see Figure 7-47). 7.9.5.8.1 eQEP Timing Requirements NO. PARAMETER DESCRIPTION MIN MAX UNIT QEP1 tw(QEP) Pulse duration, QEP_A/B 3 + 2P (1) ns QEP2 tw(QEPIH) Pulse duration, QEP_I high 3 + 2P (1) ns QEP3 tw(QEPIL) Pulse duration, QEP_I low 3 + 2P (1) ns QEP4 tw(QEPSH) Pulse duration, QEP_S high 3 + 2P (1) ns QEP5 tw(QEPSL) Pulse duration, QEP_S low 3 + 2P (1) ns (1) P = sysclk period in ns. QEP_S QEP4 EPERIPHERALS_TIMNG_03 QEP_I QEP2 QEP_A/B QEP1 QEP3 QEP5 Figure 7-47. eQEP Timing Requirements 7.9.5.8.2 eQEP Switching Characteristics NO. PARAMETER DESCRIPTION MIN MAX UNIT QEP6 td(QEP-CNTR) Delay time, external clock to counter increment 24 ns For more information, see section Enhanced Quadrature Encoder Pulse (EQEP) Module in the device TRM. 7.9.5.9 GPIO The device has three instances of GPIO144 modules. The GPIO pins are grouped into banks (16 pins per bank), which means that each GPIO module provides up to 144 dedicated general-purpose pins with input and output capabilities; thus, the general-purpose interface supports up to 432 (3 instances × (9 banks × 16 pins)) pins. Since WKUP_GPIO0_[56:143], GPIO0_[96:143], and GPIO1_[90:143] are reserved in this Device, general purpose interface supports up to 242 pins. For more details about features and additional description information on the device General-Purpose Interface, see the corresponding sections within Section 6.3, Signal Descriptions and Section 8, Detailed Description. www.ti.com AM6548, AM6528, AM6546, AM6526 SPRSP52B – DECEMBER 2019 – REVISED JUNE 2021 Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback 177 Product Folder Links: AM6548 AM6528 AM6546 AM6526 |
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